# ---
# title: 1491. Average Salary Excluding the Minimum and Maximum Salary
# id: problem1491
# author: Tian Jun
# date: 2020-10-31
# difficulty: Easy
# categories: Array, Sort
# link: <https://leetcode.com/problems/average-salary-excluding-the-minimum-and-maximum-salary/description/>
# hidden: true
# ---
# 
# Given an array of **unique** integers `salary` where `salary[i]` is the salary
# of the employee `i`.
# 
# Return the average salary of employees excluding the minimum and maximum
# salary.
# 
# 
# 
# **Example 1:**
# 
#     
#     
#     Input: salary = [4000,3000,1000,2000]
#     Output: 2500.00000
#     Explanation: Minimum salary and maximum salary are 1000 and 4000 respectively.
#     Average salary excluding minimum and maximum salary is (2000+3000)/2= 2500
#     
# 
# **Example 2:**
# 
#     
#     
#     Input: salary = [1000,2000,3000]
#     Output: 2000.00000
#     Explanation: Minimum salary and maximum salary are 1000 and 3000 respectively.
#     Average salary excluding minimum and maximum salary is (2000)/1= 2000
#     
# 
# **Example 3:**
# 
#     
#     
#     Input: salary = [6000,5000,4000,3000,2000,1000]
#     Output: 3500.00000
#     
# 
# **Example 4:**
# 
#     
#     
#     Input: salary = [8000,9000,2000,3000,6000,1000]
#     Output: 4750.00000
#     
# 
# 
# 
# **Constraints:**
# 
#   * `3 <= salary.length <= 100`
#   * `10^3 <= salary[i] <= 10^6`
#   * `salary[i]` is unique.
#   * Answers within `10^-5` of the actual value will be accepted as correct.
# 
# 
## @lc code=start
using LeetCode

## add your code here:
## @lc code=end
